Rechargeable electrochemical cell with a negative electrode comp

Details Rechargeable electrochemical cell with a negative electrode comp Rechargeable electrochemical cell with a negative electrode comp

1986-06-11

1987-09-29

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Sealed cell having gas prevention or elimation means

Prevention or elimination means is one of the cell...

429218, 252521, H01M 1052

Patent

active

046968733

ABSTRACT:
A rechargeable electrochemical cell a positive electrode, an alkaline electrolyte and a negative electrode made mainly of a hydrogen absorbing alloy containing a mixture of at least two rare earth elements including Ce whose content relative to the total amount of rare earth elements is less than 40 wt % and is preferably 0.1 wt % to 12 wt % or in the range 0.1-8 wt %, which gives still better capacity and life characteristics. Moreover, larger capacity characteristics can be obtained if the negative electrode contains a conductive powder preferably with an average particle diameter of 10 .mu.m or less as a subsidiary material.

REFERENCES:
patent: 3669745 (1972-06-01), Beccu
patent: 3980501 (1976-09-01), Feder et al.
patent: 4024322 (1977-05-01), McKaveney
patent: 4107405 (1978-08-01), Percheron et al.
patent: 4216274 (1980-08-01), Bruning et al.
patent: 4292209 (1981-09-01), Marchant
patent: 4487817 (1984-12-01), Willems et al.
patent: 4605603 (1986-08-01), Kanda et al.

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